Means for adjustably spacing disk cutters.



, PATENTED AUG.25,19.03.

H. Y. ARMSTRONG.

MEANS FOR ADJUSTA'BLY SPAGING DISK GUTTERS.

APPLICATION FILED MAR. 151903.

x0 monmh INVENTOR. F d a m V00 1% BY ATTORNEY.

UNITED STATES Patented, August 25, 190s.

PATENT OFFICE.-

HARRY Y. ARMSTRONG, on ELGIN, ILLINOIS, AssI c oR- o THOS. M LLsa BRO., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION on PENN- SYLVANIA.

MEANS FOR ADJUSTABLY SPACING D lSK CUTTERSr SPECIFICATION forming part of Letters Patent No. 737,194, dated August '25, 1903;

Application filedMarch 14, 1903- TO all whom it may concern.-

Be it known that I, HARRY Y. ARMSTRONG, a citizen of the United States, residing at the .city of Elgin, in the county of Kane and State. of Illinois, have invented certain new and useful Means for Adjustably Spacing Disk Gutters, of which the following is a specification.

The object of the present invention is to provide comparatively inexpensive and efficient means whereby disk cutters may be spaced farther apart or nearer togetherwithout removing them from their shaft and in an easy and expeditious manner.

To this and other ends hereinafter setforth the invention stated in general terms comprises U or horseshoe shaped spacers adapted to straddle the cutter-shaft and be clamped by and between the disk cutters,so that when loosened the spacers maybe easily removed and replaced by others to separate the disk cutters more or less widely from each other as desired, and the invention further comprises the improvements to be presently de- 25. scribed and finally claimed.

The nature, characteristic features, and scope of the invention will be more fully understood from the following description ,takenin connection with the accompanying draw- '30 ings, forming part hereof, and in which Figure l is a view illustrating in elevation a spacer embodying features of the invention and showing also a disk cutter and the cuttershaft in section. Fig. 2is a view drawn to an enlarged scale and illustrating a spacer in transverse section; and Fig. 3 is a view, partly in central section, illustrating a series of the spacers in application to a cutter-shaft and its cutters. T 4o In the drawings, 1 is a U or horseshoe shaped spacer.. As shown, it is semicircular on its inside rim and generally circular on its outside rim, there being an open space at 2, so that the spacer can be easily caused to straddle the cutter-shaft 3 and to be removed or permitted to drop from it. On its faces the spacer is shown as concave or cut away at 4, thus leaving bearings, as at 5, for the disk cutters 6. In use a series of spacers of difseas No.147,751l (No model.)

ferent thicknesses may be employed or the spacers may be made comparatively thin and used in groups of varying number, the pur= pose being to provide for spacing the cutters at varying distances apart, as may be required As is well known, the cutters 6 are provided with central openings through which the shaft 3 passes, so that they may be moved endwise of the shaft, and there is provided a nut 8, screwed onto the shaft 3 and adapted to press the cutters and spacers between it and a stop 9, fixed to the shaft 3, so that the cuttersand shaft revolve together. When the nut S is screwed up, the spacers are clamped between the cutters or by loosening the nut the spacers are permitted to drop off from the shaft or may be removed therefrom.

Then the cutters may be shifted to any required distances apart and spacers of proper thickness or a group of spacers making up the proper thickness inserted on the shaft between them. The nut can then be tightened and thus the cutter as a whole made ready for use. If some of the cutters are not required, they can be shifted together in a group at one end of the shaft, and such a group is shown at the right-hand side in Fig. 3. "As illustrated in the drawings, there is a key 7 interposed between the cutters and the'shaft. This key permits the cutters to be moved endwise of the shaft and when present serves to positively insure their rotation with it; but, as has been explained, the presence of the key is not essential,and it would be used principally where very heavy work was to be done.

Of course the described spacers may be adv'antageouslyv used in connection-with any disk cutters, but their use is particularly desirable in connection with machinesintended for cutting'candy and the li ke, because in that art it is necessary to make frequent adjustments of the cutters, so as to cut strips of greater or less width.

It will be obvious to those skilled in the art to which my invention appertains that modifications may be made in detail without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts herein; but,

Having thus explained my invention, What 1 claim as new, and desire to secure by Letters Patent, is

1. Means for adjustably spacing disk cutters, which comprise U or horseshoe shaped spacers separate from the cutter and adapted to straddle the cutter-shaft and be clamped by and between the disk cutters, substantially as described.

2. Means for adjustably spacing disk cutters which comprise U or horseshoe shaped spacers having their faces coneaved at their centers to provide bearings for the disk cutters, substantially as described.

Means for adjustably spacing disk cutters which comprise U or horseshoe shaped 

